Product overview©2001 Nokia Mobile Phones. All rights reserved. 51. Product overviewThe Nokia 22 PBX connectivity terminal is a GSM terminal that can be used forboth digital and analogue Private Branch Exchange (PBX) connections. The ter-minal is composed of a GSM terminal and an application module for PBX con-nections. The application module features PBX connection interfaces for bothtrunk (public side) and extension (private side) connections.In addition to PBX connectivity solutions, the terminal can also be used in con-junction with other GSM applications and various data solutions, for exampleHigh Speed Circuit Switched Data (HSCSD), PC fax, Short Message Service (SMS)and GSM Phase 2+ supplementary services.Important! In addition to this guide, refer to the Nokia 22 User’s Guidewhich provides information about the use of the Nokia 22 PBX connec-tivity terminal including safety information.